Stadium: Court 9 輪: 25 Ground: Hardcourt outdoor
| ITF M15沙姆沙伊赫 | 2021/02/16 09:25 | Daisuke Sumizawa v Keisuke Saitoh | 2-6,4-6 |
| ITF M15古晉 | 2022/08/04 04:30 | 黃琮豪 v Keisuke Saitoh | 6-1,6-0 |
| ITF M15古晉 | 2022/08/02 01:00 | Keisuke Saitoh v 維斯努∙瓦德漢 | 6-1,7-5 |
| ITF M15吉隆坡 | 2022/07/30 01:00 | Nam Hoang Ly v Keisuke Saitoh | 6-2,6-3 |
| ITF M15吉隆坡 | 2022/07/29 01:00 | Uisung Park v Keisuke Saitoh | 3-6,3-6 |
| ITF M15吉隆坡 | 2022/07/26 02:15 | Hao Sheng Koay v Keisuke Saitoh | 3-6,1-6 |
| ITF M15莫納斯提爾 | 2022/07/07 11:05 | Keisuke Saitoh v 蓋伊•奧利•伊拉杜昆達 | 1-6,0-6 |
| ITF M15莫納斯提爾 | 2022/07/06 09:35 | Keisuke Saitoh v Egor Tsarapkin | 6-2,6-2 |
| ITF M15莫納斯提爾 | 2022/06/30 09:30 | Keisuke Saitoh v 特倫斯•阿特曼 | 3-6,4-6 |
| ITF M15古晉 | 2022/08/03 01:00 | Daisuke Sumizawa v 宋紀勳 | 1-6,2-6 |
| ITF M15吉隆坡 | 2022/07/27 02:45 | 河內一真 v Daisuke Sumizawa | 4-6,7-5,6-3 |
| ITF M15芙蓉市 | 2022/07/24 01:00 | 羽澤慎治 v Daisuke Sumizawa | 0-6,2-6 |
| ITF M15芙蓉市 | 2022/07/23 02:00 | Daisuke Sumizawa v Uisung Park | 6-3,7-6 |
| ITF M15芙蓉市 | 2022/07/22 01:00 | 竹内研人 v Daisuke Sumizawa | 1-6,4-6 |
| ITF M15芙蓉市 | 2022/07/21 01:30 | Daisuke Sumizawa v Jie Cui | 7-6,6-2 |
| ITF M15芙蓉市 | 2022/07/20 03:20 | Daisuke Sumizawa v Dheeraj Kodancha Srinivasan | 6-3,6-3 |
| ITF M15布德瓦 | 2022/06/10 09:00 | Daisuke Sumizawa v 伊萬 Liutarevich | 7-5,6-7,1-6 |